Want to build your own PS3 firmware? If you've got Linux and some skills in the field of programming, you can now do exactly that.
Capitalising on the work done last week by the fail0verflow team in breaking the PS3's copy protection wide open, KaKaRoTo has released a set of tools that allow users to create their own custom piece of PS3 firmware.
This means that if you want to roll your PS3 back to, say, v3.41, you can. As of now it's not terribly useful, as it won't let you run homebrew programs or backup copies of games, but KaKaRoTo says "this custom firmware is really meant for future homebrew installation", and in addition "will not allow piracy".
Think of it, then, as one of those PSN updates where they quietly lay the groundwork for a future update, one that actually has all the good stuff.
A word of warning if you're thinking of trying this out: you may want to disconnect your console from the PlayStation Network first.